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Date:      Tue, 17 Aug 2010 23:10:20 +0200
From:      =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= <phcoder@gmail.com>
To:        soc-status@freebsd.org, freebsd-mips@freebsd.org
Subject:   Re: Yeeloong port is functional
Message-ID:  <4C6AFABC.5050809@gmail.com>
In-Reply-To: <4C6AC6E9.2010801@gmail.com>
References:  <4C67704C.70609@gmail.com> <4C6861B4.6020102@gmail.com> <4C69D1D5.809@gmail.com> <4C6AC6E9.2010801@gmail.com>

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Jayachandran reported that the patch was stripped (size limit ?). So I
uploaded it here:
http://launchpad.net/kfreebsd-yeeloong/trunk/gsoc/+download/yeeloong_rc4.=
diff
On 08/17/2010 07:29 PM, Vladimir '=CF=86-coder/phcoder' Serbinenko wrote:=

> On 08/17/2010 02:03 AM, Vladimir '=CF=86-coder/phcoder' Serbinenko wrot=
e:
>  =20
>> On 08/15/2010 11:52 PM, Vladimir '=CF=86-coder/phcoder' Serbinenko wro=
te:
>>  =20
>>    =20
>>> Hello, all. Some cleanups and I managed to enable cache on kseg0.
>>> Additionally it has some basic Geode support.
>>> I'm looking forward to split it in smaller patches in order to get it=

>>> into HEAD. Also I'll fill the blanks (like power management) as time
>>> permits.
>>>  =20
>>>    =20
>>>      =20
>> And another update. Now Geode USB is fully functional. Few other issue=
s
>> are fixed. Unfortunately I couldn't find a way to fix cache completely=
=2E
>> So I decided to change page size to 16KB to make tag bits of VA to be
>> identical to PA effectively transforming VIPT cache into PIPT which is=

>> easier to handle. It's not functional yet but it will be soon.=20
>>    =20
> 16K indeed fixed most of the problems. Patch attached.
>  =20
>> Even
>> though the GSoC is nearly over I'll continue to work on yeeloong to fi=
x
>> remaining issues. Sorry for delays caused by hw malfunctions. And than=
ks
>> to everybody who supported me, especially Juli Mallett, Olexandr
>> Tymoshenko and M. Warner Losh
>>  =20
>>    =20
>>> On 08/15/2010 06:42 AM, Vladimir '=CF=86-coder/phcoder' Serbinenko wr=
ote:
>>>  =20
>>>    =20
>>>      =20
>>>> Hello, all. Despite the hardware-inflicted setbacks (my yeeloong fri=
ed
>>>> right before the mid-term), Yeeloong port is now functional. Both se=
rial
>>>> and local (keyboard + screen) work. Real Time Clock is working. Inte=
rnet
>>>> is working. USB controller on PCI is working. Userspace is working.
>>>>
>>>> Remaining issues:
>>>> 1) Disabled cache. The reason are peculiar properties of L2 cache. I=

>>>> actualy have the code to fix it but I'm not sure to hit GSoC deadlin=
e
>>>> about it.
>>>> 2) Only 256 MiB of RAM are supported. Should be easy to fix once 64-=
bit
>>>> parts are in.
>>>> 3) No Geode support. So no IDE, 2 of 3 USB ports or audio. These
>>>> components are actualy pretty standard, one has only to add support =
for
>>>> MSRs.
>>>> 4) No power management. Wasn't planned to have it implemented during=
 GSoC.
>>>>
>>>> Not tested:
>>>> 1) Touchpad. Never connected to my laptop during developpement becau=
se
>>>> to use it one has to close front lid and so cut from serial connecto=
r
>>>>
>>>> 3rd party developpements  which will improve Yeeloong support:
>>>> 1) X.org support. The required card is already supported in latest
>>>> x.org. So it's a question of importing last X.org and testing it.
>>>> 2) 64-bit developpement. Currently if I compile 64-bit kernel it
>>>> contains only 64-bit imgact. Imposing only 64-bit binaries is subopt=
imal.
>>>>
>>>>  =20
>>>>    =20
>>>>      =20
>>>>        =20
>>>  =20
>>>    =20
>>>      =20
>>  =20
>>    =20
>
>  =20


--=20
Regards
Vladimir '=CF=86-coder/phcoder' Serbinenko



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